The CMA Consumer Protection and Enforcement Regime Summit

‘Hayley is the interim Senior Director for Consumer Protection at the CMA, responsible for its consumer enforcement work and preparation for its new enforcement powers under the Digital Markets, Competition and Consumers Act (DMCCA). She was previously a Director working across the CMA's enforcement and markets tools, including its recent work on AI Foundation Models. 

Prior to joining the CMA, Hayley worked at a number of regulators, including the Financial Conduct Authority (FCA), Ofcom and the Advertising Standards Authority (ASA). Hayley holds an MSc in Regulation from the London School of Economics.’ 

Angelique advises on competition law relating to the abuse of monopoly power and anti-competitive agreements, cartels and consumer protection. She also advises on anti-trust and consumer protection investigations, UK/EU merger control, national security, foreign direct investment controls and subsidies.

Rona specialises in UK and EC competition and merger control law. She advises UK and international clients on the wide range of competition law matters, including of anti-trust litigation.  She is recognised as a leading practitioner in her area and was acclaimed as one of the Lawyer's "Hot 100" for her contributions.

Her clients span a variety of sectors, including comprehensive experience of advising in the retail and consumer sector for over 20 years.  She also regularly advises in regulated sectors and co-leads the firm's Water Group.  She is recognised by Legal 500 as a leading individual in that area.

Leonidas Theodosiou advises on competition law and litigation. He is highly recommended by leading directories and is uniquely recognized as a leading Next Generation Partner by The Legal 500 UK in both “EU and Competition” and “Competition Litigation” categories. Global Competition Review identified Leo as one of the world’s Top 40 Lawyers Under 40 in foreign direct investment (FDI) regulation. He received Lexology’s 2024 and 2025 Client’s Choice Awards for best UK competition lawyer, noted for “add[ing] real value to clients’ businesses above and beyond the other players in the market.” Leo is one of few lawyers globally who are fully qualified to practice law in the United Kingdom, European Union, and United States.

Tom is a partner at Geradin Partners, having previously been Legal Director at the UK’s Competition and Markets Authority (CMA).  Tom advises companies that are under investigation for competition law or consumer law infringements in a variety of sectors, and also those involved in merger investigations, market studies and market investigations.

Tom advises companies on digital regulation in the UK, the EU and other jurisdictions.  He led the legal team on the Digital Markets Taskforce, set up by the UK Government to advise it on digital regulation.  He also directed the CMA’s influential digital advertising market study, the CMA’s work on setting up the Digital Markets Unit, and its antitrust enforcement cases in the tech sector.  Tom was the only private practice lawyer to be invited to give testimony to the Public Bill Committee of the UK Parliament during the passage of the Digital Markets, Competition and Consumers Act.

Sarah is the Head of the Competition Group in the Innovation department. 

Sarah is a very experienced litigator, specialising in competition litigation, with particular experience acting for claimants in complex, high profile cases involving competition law based claims or defences.  Sarah has represented clients in leading competition damages claims in the English courts and in arbitrations.

Sarah also assists businesses that find themselves under investigation by Competition Regulators and businesses that are concerned about the way their affairs may have been conducted - attending Dawn Raids, advising on defence strategies, assisting with responses to information requests, applying for leniency from fines (where appropriate), assessing potential civil liabilities, and making submissions.

Sarah has been recognised as a recommended individual for Competition Litigation in Chambers & Partners and Legal 500, who have recognised her as "a great team leader in litigation matters."

Sarah is a member of the Law Society Competition Section, ABA Antitrust Law Section and Competition Law Association.

Nafees Saeed is a partner in Weil’s Antitrust practice, where he advises on all aspects of EU and UK competition law, including merger control, cartel investigations, restrictive practices, market dominance, and sector inquiries.

Nafees has extensive experience of representing clients before global competition regulators in Asia, Australia, Africa and South America.

Nafees’ experience encompasses a broad range of industries, including technology and digital markets, pharmaceuticals, healthcare, financial services, media, telecommunications, IP/IT, consumer goods, sports, aviation, energy, chemicals, and industrial/manufacturing sectors.

Nafees recently completed an extended secondment to the UK’s Competition and Markets Authority. During this secondment Nafees held the position of Director in the agency’s Mergers division and was responsible for leading a number of key Phase I and Phase II merger investigations.

Wendy trained as a Trading Standards Officer and qualified in 1988. 

She worked in a number of local authorities and was Head of Environmental Health and Trading Standards at LB Merton from 1994–2002. She worked as Director of Policy at Local Government Regulation from 2002 until 2011 responsible for policy relating to trading standards, food safety, animal health and civil registration. From April 2011 to September 2012, Wendy ran her own consultancy business undertaking a range of interim management and policy work. In September 2012 Wendy was appointed as the Director for National Trading Standards and Director of Policy for the Association of Chief Trading Standards Officers.

Michael Grenfell is a Partner in the global law firm Clifford Chance, specialising in antitrust / competition and in consumer protection.

Michael joined Clifford Chance in 2024, based in London, bringing with him a decade of experience from the UK’s Competition and Markets Authority (CMA). At the CMA, he had overall responsibility for the enforcement of competition and consumer protection laws, and was an Executive Director on the CMA's Board. Prior to his role at the CMA, Michael was an antitrust partner at another law firm.  He is the author of a number of works on competition and regulatory law, including Coleman and Grenfell on the Competition Act 1998 (OUP).  He has an M.A. in history and law from Cambridge University, and a Ph.D in political thought from the London School of Economics.

Tim has a broad investigations and contentious regulatory practice, which spans a wide range of authorities, including the UK Financial Conduct Authority, the Serious Fraud Office, the European Commission and the UK Competition and Markets Authority.

Tim’s particular expertise includes advising major corporations and financial institutions in respect of bribery and corruption, regulatory, antitrust and consumer protection investigations. He also has extensive experience of related competition litigation matters.

Tim is recognised as a leading individual in Who’s Who Legal: Competition - Future Leaders, Partners 2023 publication.

Tim is recognised as a Next Generation Partner for Competition Litigation by Legal 500 2024.

Tim is also described as having “tremendous ability” in the competition litigation space and is “a terrific pick to run a competition law dispute”. Legal 500 2022, Competition Litigation

Jonathan Kirk KC is currently ranked as the star individual silk for Consumer Law and Finance. His practice can be divided into three main areas: Consumer Law, Consumer Finance and Food Law.

For several years Jonathan has been ranked as the star individual silk for consumer law by Chambers & Partners and a Band 1 KC by the Legal 500.

He has been the principal author and editor of the Pink Book on consumer law (Consumer and Trading Standards: Law and Practice published by Lexis Nexis) for each of the 11 editions since it was first published in 2001.

Jonathan has been instructed to defend businesses in virtually all of the CMA’s sectoral investigations into consumer law infringements: including supermarket pricing, online retail, package holidays, furniture, carpet pricing, airline refunds, ground rents, anti-virus subscriptions, ticket reselling, dating websites and covid cancellation.

He recently represented British Airways in their successful defence to the CMA investigation in relation to Covid refunds, and is currently instructed in the sectoral investigations into supermarkets, online website architecture and greenwashing.

In the Supreme Court he represented the successful parking company in Beavis v ParkingEye, which now sets out the correct approach to the assessment of unfair terms in consumer contracts and the general application of the civil penalties doctrine.

Jonathan has also acted as an expert witness on consumer law in overseas courts. He was instructed by Apple as its expert witness on UK consumer law in the US courts for its defence of a global class action concerning the performance of older iPhone models.

For over 25 years he has advised and acted in some of most important trading standards litigation. In particular, he has defended numerous companies against allegations of mis-selling and misleading pricing, including the Tesco strawberries litigation. He was the legal adviser and draftsman for the current CTSI Pricing Practices Guide.

Helen is Of Counsel in the Antitrust & Foreign Investment Group based in London. She has over 20 years’ experience advising on a wide range of UK and EU competition matters including complex mergers, market investigations, cartel investigations, litigation (including successful appeals before the Competition Appeal Tribunal in the UK) and compliance matters.

Helen advises clients across a range of sectors and has particular expertise in retail, consumer goods, energy / infrastructure and insurance industries. She regularly advises FTSE 100 corporates at board level. She is a former recipient of the Europe Women in Business “Rising Star” award, and has spent time on client secondment to BP plc and overseas secondment to our Brussels office.

Helen oversees mentoring and recruitment for the London Antitrust & Foreign Investment group with a focus on recruiting and retaining a diverse and happy team that has the tools and flexibility for every individual to maximise their potential.

Cat is a Partner in our dispute resolution practice in London, specialising in the defence of complex and large-scale group litigation across a range of industries.

Her practice focuses on ESG, consumer protection, and data privacy / data breach claims.  Cat has particular expertise in relation to English group litigation having acted on two of the most high profile group actions in the High Court.  She has also helped numerous clients to manage contentious regulatory risks and is experienced in dealing with external regulators and authorities.

Jamie Cooke is a partner in Norton Rose Fulbright’s competition team, based in London.

He has worked across a number of different sectors and a wide range of competition, economic regulatory and consumer law matters. Jamie has been seconded to the CMA, where he worked on consumer law enforcement cases.  As well as acting for companies subject to consumer law investigations in the UK, Jamie has also advised in respect of market studies and investigations where issues relating to consumer vulnerability were key.

Aastha Mantri is an Associate Director at Economic Insight, and has over a decade of experience in advising clients on the economics of competition law and litigation matters, across multiple jurisdictions.  Her experience spans all aspects of competition law and litigation, including mergers and acquisitions, market studies and investigation, abuse of dominance and cartel investigations, class actions and collective proceedings, and follow-on claims for damages.  Aastha has provided evidence to courts and helped inform several significant rulings.  She is trusted by her clients for her ability to respond strategically to rapidly evolving situations.  Before joining Economic Insight, Aastha worked at Compass Lexecon, where she also specialised in providing economics advice on issues relating to competition and litigation. Prior to that, she held multiple positions at the Department for Transport, advising on major infrastructure projects such as airports expansion and high speed rail. Aastha holds a Masters in Economics (with Distinction) from the London School of Economics and Political Science (LSE).

Kotryna Drasutyte has over 10 years experience delivering economic advice in the public and private sectors. She has acted as the lead economist for high-profile matters at the UK Competition and Markets Authority and a sectoral regulator and has advised private clients in the United Kingdom, European Union and internationally.

Kotryna has provided economic advice on market studies, investigations and merger inquiries in sectors including consumer goods, payments, technology, digital, transport, energy and manufacturing. She has also advised private clients on excessive pricing cases and follow-on damages claims.

Kotryna has extensive experience researching consumer preferences and drivers of choice, scoping economic arguments and identifying the strongest type of evidence to test them, which may involve qualitative analyses and data-intensive exercises including econometrics.

Becky specialises in EU and UK competition law, and has experience with both UK and EU competition authorities in the context of merger investigations, cartels and complaints.

Becky also advises on the competition aspects of commercial agreements and corporate documents and on merger clearance. She has previously advised clients on competition and regulatory issues across many sectors including life sciences and healthcare, transport, grocery retail, fast moving consumer goods and construction.

She has extensive experience advising clients on all aspects of competition law, including investigations by the CMA and European Commission, merger control filings and litigation in the High Court and Competition Appeal Tribunal. She also advises on consumer protection law investigations and compliance.

A Company Commercial Group partner at Eversheds Sutherland, Eve England advises clients across a range of sectors on technology and consumer law matters.

Eve England helps clients like yours navigate an increasingly digital environment, providing strategic advice on matters relating to the use of technology solutions across your business, whether in relation to new customer propositions or in relation to the procurement of business technology and outsourcing systems. Eve has been advising clients on their technology solutions since her qualification with the firm in 2007.  As one of few UK lawyers with experience in advising on both consumer law and business-to-business arrangements, Eve has a unique skill-set within Eversheds Sutherland that offers a one-stop-shop for those of her clients who are looking for holistic and pragmatic advice on their global technology strategies.

Her clients include financial institutions, fintech disruptors, private equity firms, global consumer businesses and universities, as well as clients operating across the technology and energy sectors.

Eve spends most of her time helping businesses like yours ensure that they establish legally compliant and user-friendly customer journeys for new end user propositions, as well as advising on the commercial contracts underpinning those solutions.  Eve also spends a significant amount of her time advising clients in the financial services sector in relation to the regulatory compliance obligations that apply to their cloud and third party technology outsourcings.

Eve’s experience in advising clients on both end user and business technology arrangements has also meant she is well placed to advise private equity houses and other investment businesses on the acquisition of start-up and disruptive financial tech businesses, and she regularly provides strategic advice on critical licensing arrangements and business model structures, as well as drafting and negotiating new commercial arrangements to facilitate post completion activities.

Eve is passionate about developing people to their full potential, and is an active participant on both internal and external mentoring and development schemes, as well as championing diversity across her team.  Eve supports undergraduate law students as part of the Eversheds Unlocked scheme.

In her spare time, Eve enjoys playing the piano, hiking, watching rugby, baking and she also loves all things sci-fi. Eve is an Associate Producer of The 7th Rule: A Star Trek Podcast.

Maria Rosaria Raspanti works mainly out of our Rome office, where she is a member of the Antitrust and Competition Department.

Maria Rosaria advises Italian and foreign companies, prevalently on matters falling within the scope of antitrust and regulatory law.

She is a member of the International Bar Association (IBA).

She regularly publishes on competition-related topics, having also authored books on the application of competition law to distribution agreements and on competition matters in the fashion industry.

She has been awarded as EU & Competition lawyer of the year 2023 at the Fortyunder40 Awards by Legalcommunity.

Tom is a senior associate in the Litigation and Dispute Resolution practice.

He specialises in litigation with a regulatory angle, acting for regulators and regulated entities in both litigation and contentious regulatory matters. In particular, Tom also has experience with competition, public law, and financial services litigation (both wholesale and retail). He has acted for clients in proceedings in the High Court and the Court of Appeal, as well as in arbitrations.

Tom has spent time on secondment to the Panel on Takeovers and Mergers and to an international investment bank.

Having joined the firm in 2013, Mario Gras is regarded as a tech-savvy advisor in the launching of digital services and platforms, with a strong expertise in a wide range of related areas such as data protection, consumer protection, or financial regulatory matters. Always adopting a very business-oriented approach, Mario finds the right legal fit amidst the ever-changing digital economy that his clients navigate. His academic training on European Union and Competition law enables him to provide thorough advice in any digital matter. He is a regular lecturer and a member of the Madrid bar.

He has a robust experience in the areas of privacy, e-commerce, online advertising, digital media, telecoms, audiovisual media, distribution and payments services (PSD, EMD, AML), acquired by providing broad legal advice to a wide range of sorts of entities from large multinational groups to thriving start-ups with new and challenging business models.

All throughout his career, Mario's focus has gravitated around consumer protection issues in the wide range of legal fields that set out specific protection rules. From advising for large audiovisual and media platforms when receiving consumer claims with consumer authorities, to designing the strategy towards consumer compliance for e-commerce and media platforms. Mario also specializes in consumer protection in the context of the provision of financial services.

He is a regular lecturer at law schools and speaker on the above topics.

Tara works across Frontier’s strategy and competition practices. She regularly advises large clients in the retail and consumer, financial services, and digital sectors on commercial, regulatory and competition issues. Tara is an expert in behavioural economics and consumer psychology, and advises on a wide range of consumer-related issues.

Henry Mostyn’s practice focuses on EU and UK competition law, including merger control, anticompetitive agreements, and abuse of dominance rules.

Henry has represented clients before the European Commission and the UK Competition and Markets Authority, as well as litigation before the European Courts in Luxembourg and the UK High Court. His particular focus is on the application of the abuse of dominance rules to the technology sector.

Henry joined the firm in 2012 and became a partner in 2022. He was resident in the firm’s Brussels office from 2012 and moved to the London office in 2014. Previously, he completed pupillage at 4 New Square Chambers, Lincoln’s Inn. He has a background in mathematics.

During 2017, Henry worked at the UK Competition and Markets Authority in the mergers team.